How do you solve #-5x + 14y = 16 ; -3x + 9y = 12#?
1 Answer
Jan 2, 2017
Explanation:
Given
[1]
[2]
Multiply each equation by a constant to make coefficients of
[2]=[1]
[3]=[2]
Add [2] and [3] to get rid of
[4]
Divide both sides of [4] by
[5]
Substitute
[6]
Simplifying
[7]
[8]
[9]